The AND gate - Digital Logic gates

Gates are what make many of ICs, the two popular
families are the 40xx CMOS and the 74xx TTL . Now
40xx come in 74HCT40xx flavors which approach the
quality of an ideal gate.

Entire circuits with Gates can also be also be
burnt into PLDs, FPGAs and CPLDs just like you
burn your CDROM. Gates can also be implemented in
assembly language which a microcontroller like
8051 will understand and execute. Hardware gate
circuit will operate in real time, propagation
delay of nano seconds will be there due to
parasitic gate capacitance or FET switching times.
Software Gates using microcontroller and code will
depend on both propagation delay of semiconductor,
CPU clock speed and BUS width.

AND Gate Simulation

This gate ANDs the two inputs A and B, The Output
is high only if A AND B both are high. There may
be a AND gate with many inputs, only if all inputs
are high the output will be high.

This page requires images and javascript to
be enabled to try out the demo of the gates
below.

A

Q

B

Toggle the red buttons above to
apply a 'high' or 'low' to inputs A and B and
watch the output Q.

These Gadgets helps beginners learn some digital
circuit concepts. The Digital Logic is Studied by
operating Switches and observing LEDs on a Virtual
Breadboard. Lead Free

The Gate is a digital component that is used to
compute an output for certain inputs, the inputs and
outputs have two states high-1 and low- 0. Let us
assume high is 5V and low is 0V (like in CMOS). On a
high level the LED will light up and on a low level
the LED is off. Now let us see what Logic
means. digital-tutors -
project page.